import auth from "@/plugins/auth";
import router, { constantRoutes, dynamicRoutes } from "@/router";
import { getRouters } from "@/api/menu";
import Layout from "@/layout/index";
import ParentView from "@/components/ParentView";
import InnerLink from "@/layout/components/InnerLink";
import routes from "@/config/routes";

// 匹配views里面所有的.vue文件
const modules = import.meta.glob("./../../views/**/*.vue");

const usePermissionStore = defineStore("permission", {
	state: () => ({
		routes: [],
		addRoutes: [],
		defaultRoutes: [],
		topbarRouters: [],
		sidebarRouters: [],
	}),
	actions: {
		setRoutes(routes) {
			this.addRoutes = routes;
			this.routes = constantRoutes.concat(routes);
		},
		setDefaultRoutes(routes) {
			this.defaultRoutes = constantRoutes.concat(routes);
		},
		setTopbarRoutes(routes) {
			this.topbarRouters = routes;
		},
		setSidebarRouters(routes) {
			this.sidebarRouters = routes;
		},
		generateRoutes(roles) {
			return new Promise((resolve) => {
				let res = routes;
				const sdata = JSON.parse(JSON.stringify(res.data));
				const rdata = JSON.parse(JSON.stringify(res.data));
				const defaultData = JSON.parse(JSON.stringify(res.data));
				const sidebarRoutes = filterAsyncRouter(sdata);
				const rewriteRoutes = filterAsyncRouter(rdata, false, true);
				const defaultRoutes = filterAsyncRouter(defaultData);
				const asyncRoutes = filterDynamicRoutes(dynamicRoutes);
				asyncRoutes.forEach((route) => {
					router.addRoute(route);
				});
				this.setRoutes(rewriteRoutes);
				this.setSidebarRouters(constantRoutes.concat(sidebarRoutes));
				this.setDefaultRoutes(sidebarRoutes);
				this.setTopbarRoutes(defaultRoutes);
				resolve(rewriteRoutes);
			});
		},
	},
});

// 遍历后台传来的路由字符串，转换为组件对象
function filterAsyncRouter(asyncRouterMap, lastRouter = false, type = false) {
	return asyncRouterMap.filter((route) => {
		if (type && route.children) {
			route.children = filterChildren(route.children);
		}
		if (route.component) {
			// Layout ParentView 组件特殊处理
			if (route.component === "Layout") {
				route.component = Layout;
			} else if (route.component === "ParentView") {
				route.component = ParentView;
			} else if (route.component === "InnerLink") {
				route.component = InnerLink;
			} else {
				route.component = loadView(route.component);
			}
		}
		if (route.children != null && route.children && route.children.length) {
			route.children = filterAsyncRouter(route.children, route, type);
		} else {
			delete route["children"];
			delete route["redirect"];
		}
		return true;
	});
}

function filterChildren(childrenMap, lastRouter = false) {
	var children = [];
	childrenMap.forEach((el, index) => {
		if (el.children && el.children.length) {
			if (el.component === "ParentView" && !lastRouter) {
				el.children.forEach((c) => {
					c.path = el.path + "/" + c.path;
					if (c.children && c.children.length) {
						children = children.concat(
							filterChildren(c.children, c)
						);
						return;
					}
					children.push(c);
				});
				return;
			}
		}
		if (lastRouter) {
			el.path = lastRouter.path + "/" + el.path;
		}
		children = children.concat(el);
	});
	return children;
}

// 动态路由遍历，验证是否具备权限
export function filterDynamicRoutes(routes) {
	const res = [];
	routes.forEach((route) => {
		if (route.permissions) {
			if (auth.hasPermiOr(route.permissions)) {
				res.push(route);
			}
		} else if (route.roles) {
			if (auth.hasRoleOr(route.roles)) {
				res.push(route);
			}
		}
	});
	return res;
}

export const loadView = (view) => {
	let res;
	for (const path in modules) {
		const dir = path.split("views/")[1].split(".vue")[0];
		if (dir === view) {
			res = () => modules[path]();
		}
	}
	return res;
};

export default usePermissionStore;
